Keywords you may need:

Sensors
Modules
      Esp8266
Board
      R3&ATMEGA2560
      NodeMCU
Sheild
      Screw sheild
      Nano Sheild
Relay
Temperature Controller
Displays
      OLED LED&RGB
      LCR
Amplifier
Power supply
     Step Up
     Step down
     Converter
     Switch
GPS
Light
Wireless/Wifi

Dear customer:
Thank you for visit our store,we are proffessional "Business & Industrie" seller for 10 years,our main products included:Sensors,modules devolpment board, LED displays, other IC procuts an so on,any question about DIY robot,Arduino,or Raspberry Pi will be welcome to discuss with us,we will try our best to supply the most advanced product and price,(if we sale more,the cost of made one product will be reduce and we will change or price to make you save more.
Hope you enjoying yourself here!

            We appreciate your business!

 

We will arrange shipping for you within 24 Hours after payment cleared except the holidays.

We only ship to the confirmed address provided by PayPal. Before you pay, please make sure your address in PayPal matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.

-We ship items to Worldwide. Thank you!

-we will ship out the order in 1-2 business days after payment cleared .Since it is international shipping ,delivery time is about 15--28 business days to arrive to most countries.

We accept PayPal payment ONLY.

* We believe our items are so outstanding. We are convinced you will be happy with your Purchase.

* If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund to you after the returned item arrived at our warehouse.

* Please include your eBay ID and item number with any email requests.

* When you satisfied with our product and services please leave us positive feedback.

* If you have got the package, please confirm "Delivery on time" For us.

* If a problem occurs, contact us immediately with any email request.

* Just contact us using the " Ask the seller a question" link on eBay.

Digital PH Meter & TDS LCD Tester Lab Aquarium Pool Hydroponic Water Monitor

Description:
ON/OFF PH Meter)
Yellow                                                                                                  Red
                       
This digital pen style PH meter is an ideal instrument for any aquarium, the fishing industry, swimming pools, school laboratories, food, beverage etc.
This PH meter is highly efficient and accurate due to its advanced microprocessor technology.
Big LCD display screen which has great waterproof performance and let you easily read the displayed value.
This digital pen style PH meter is an ideal instrument for whatever you may need to test the PH levels.
With compact portable design.
Specifications:
Main color: Yellow(As pictures show)
Measure range: 0.00-14.00pH
Resolution: 0.01pH
Accuracy: ±0.05pH
Operating temperature: 0℃~80℃
Calibration: two points automatic calibration
Power supply: 2 * 1.5V LR44 batteries(Not Included)
Size: approx. 155 * 30 * 14mm/6.1 * 1.2 * 0.5in
Package including:1 * Digital PH Meter
(Red/Yellow)

White(TDS Meter) 

100% Brand new and high quality.
This item can be used in: water purifiers and filters, food (vegetable, fruits) & drink quality monitoring, pools and spas, aquariums, hydroponics.
Hold function: Saves measurements for convenient reading and recording
Auto-off function: Turns off meter after 10 minutes of non-use to conserve batteries
Dual Range: Measures form 0-999ppm, with a resolution of 1ppm. From 1,000 to 9,990ppm, the resolution is 10ppm, indicated by drinking x 10image, Factory calibrated
Rang: 0-9990ppm
Accuracy: +/-1.5%
Battery: 2 x 3V Button Cell battery (Not Included)
Item size:142mm x 23mm x 13mm
Package included:1x TDS Meter Tester

Yellow(PH Meter)+White(TDS Meter)

Note:Pls see this photo carefully.there is no ON/OFF buttons on the PH meter)

Package Included:
1x White TDS Meter Tester

1 x Yellow PH TEST Meter Tester Pen Pool Spa Water Aquarium Fish

Note: Do not drop the entire TDS meter in water of dip beyond the maximum immersion level. This unit is not water-tight and is not covered under the warranty if water enters the unit.


Am 19.04.18 hat der Verkäufer die folgenden Angaben hinzugefügt:


Am 19.04.18 hat der Verkäufer die folgenden Angaben hinzugefügt:

DataCaciques